He revealed Sunderland chairman Niall Quinn had told Tottenham it was a "no-go" and they were "wasting their time" in their pursuit of Jones, 24, after confirming "there had been an inquiry" which caused "unrest".
"What Tottenham do may unsettle a player and that might be a problem but it's just going to be 'no' it's as simple as that," Sbragia said. "Tottenham seem to be in for everybody and make sure it goes in the papers, which is completely wrong. We show interest in players but I don't put it in the papers. We can all be desperate but we have to keep our house in order.
"There are no ifs and buts about that. They have a different agenda. It's wrong to try to unsettle. Spurs do what Spurs do. It's not the way to do business. It should be in private. I'd never leak anything out. It's not right."
Jones has also been linked with Liverpool and Chelsea since heading to Wearside from Southampton in August 2007 and has scored 12 goals in 45 games for Sunderland.
Sbragia, who ruled out selling captain Dean Whitehead to Hull, added: "There's no way I'll be selling my best players and I don't care what Spurs do he won't be going anywhere. I can't see the point in selling one of my best centre-forwards to a club that is in the same position as us.
"No matter how many times we say it they keep coming back but as far as I am concerned it was always going to be a 'no' and it always will be a no. If it was AC Milan or Real Madrid I might have a problem and I'd have to think about that.
"Kenwyne's an important member of the team and he's hitting form and scoring goals. Sunderland need him. If I'm going to sell my best players I would be better walking out the door."